#include<cstdio>
int main(){
	char a[200];
	gets(a);
	int i=0;
	int count=0;
	while(a[i]!='\0'){
		if((a[i]=='a' || a[i]=='e' ||a[i]=='i' ||a[i]=='o' ||a[i]=='u')||(a[i]=='A' || a[i]=='E' ||a[i]=='I' ||a[i]=='O' ||a[i]=='U')){
			count++;
		}
		i++;
	}
	printf("%d",count);
}
